Moses was so focused that the people would not believe, but Aaron and Moses do exactly as God had instructed them, and the people believe. They are ready to believe, eager to hear what God has in store for them. Aaron and Moses work together, and through them, the people are led into their next step. This is what happens when people work together to glorify and serve God -- the people are strengthened.
May we follow their example. Moses and Aaron had to work together, and they each used what God had given them. They may have been afraid or uncertain, but they trusted in God, and they learned to trust in each other. The people looked at them and saw God working through them. They bowed their heads and worshiped.